Improvement in pumps



y UNITED STATES PATENT` OFFICE..

` WILLIAM S. JUDD, OF CHANHASSEN, INIINNESOTA.

IMPROVEMENT IN PUMPS.Y

Specification forming part of Letters Patent No. 39,577', dated August18, 1863.

To all whom it may concern:

Be it known that I, WILLIAM S. JUDD, of Chanhassen, in the county ofCarver and State of Minnesota, have invented a new and ImprovedForce-Pump; and I do hereby declare that theifollowing is a full, clear,and exact description of the saine, reference being had to theaccompanying drawings, making a part of this speciiication, in which-Figure l is ayertical central section of my invention, taken in the linex Fig. 2; Fig. 2, a horizontal section of the same, taken in the lineyy, Fig. l; Fig. 3, a detached section of the pump-cylinder, taken in theline z z, Fig.2.

Similar letters of reference indicate correspondin g parts in theseveral figures.

This invention relates to animproved submerged pump; 'and it consists inthe employment or use of a tubular rotating or reciprocating piston-rodin connection with a piston, valves, and stationary water-passageswithin the cylinder, all arranged in such a manner as to forni a verysimple and efficient pump of the class specified, and one which may beused to elevate the water to the top of the well only, or to force waterat a considerable distance, as may be required. l

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents a cylinder which is permanently attached to a baseplate, B,and C is a tubular piston'rod, which is fitted centrally in the cylinderA, and extends upward a suitable distance above the top ofthe well. Theupper end of the pistonrod C is fitted within an airchamber, D, and ithas a valve, E, within it a short distance below the air-chamber.

F is a discharge-pipe which projects from the lower part oftheair-chamber ,and G is a pinion which is placed on the rod C and gearsino a segmentrack, H, which has a handle, I attached to it, thesegmentrack H working on a pin, a, as acenter. (See Fig. l.) Theairchamber D is iitted on the upper cross-beam of a framing, Jthe pin apassing through a projection, b, which is attached to thesame. The lowerpart of the piston-rod G, which is within the cylinder A, has slots cmade in it at opposite points to admit of a piston, K,

passing through, said piston being equalin length to the diameter of thecylinder, so that its ends may work in contact with the inner side ofthe cylinder. The slots c :are made of sufficient capacity to serve asopenings to admit of the water passing into the, pistonrod. Within thecylinder A there are placed two pairs of plates, d, arranged in V-format opposite sides ofthe piston-rod C. These plates are permanent, andtheir outer ends are attached to the inner side of the cylinder, whiletheir connected or attached ends are in contact with the rod C, as shownin Fig. 2. These plates d, thus arranged, form 4waterchambers L, andthey communicate with the water in the well by means of perforations e,which are made in the cylinder A, as shown in Fig. 2. In each plate dthere is made an opening, f, and M are valves, which are connected byrods g in pairs, a pair of rods being for each water-chamber L. The rodsg pass through the plates d, and they cause the two valves of each pairto work or move simultaneously, one moving oif from the opening f in itsplate d, while the other closes over the opening f in its plate. Thiswill be fully understood by referring to Fig. 2. The piston-rod C isoperated with a reciprocating rotating motion-that is to say, it isturned iirst in one direction and then in the other by actuating thesegmentrack H. The piston K is, of course, moved in the same way, andthe valve behind the suction part of the piston is drawn into thecylinder A through the waterchambers L, as indicated by the arrows I,while the water in front of the forcing end of the piston is pressedforward and ejected through one of the slots c into the piston-rod C andup the same into the air-chamber and out through the discharge-pipe F.`On the return motion of the piston the water that was previously drawninto the cylinder is forced into the piston-rod C, as indicated by thearrows in Fig. 2, the valves lM opening and closing under the action ofthe, piston. When it is desired to force the waterfrom the pump thevalve E is closed, so that the water cannot`be discharged from the pipeF, audit is forced through the lower end of the pistonrod G and througha passage, g, into a vertical pipe, N, which may be extended upward toaproper height. In the pipe N there is a valve, h, which is closed whensaid pipe is not used. In the loWer part of the piston-rod C there is avalve, O,Which serves as aeheckvalve. The arrangement is extremelysimple and efficient, and may be used advantageously for domestic orother purposes.

Having thus described my invention, what I elairn as new, and desire tosecure by Letters Patent, is'-'- The tubular reciprocating rotatingpiston-Y

